[AArch64] Expand DImode constant stores to two SImode stores when profitable
* config/aarch64/aarch64.md (mov<mode>): Call
aarch64_split_dimode_const_store on DImode constant stores.
* config/aarch64/aarch64-protos.h (aarch64_split_dimode_const_store):
New prototype.
* config/aarch64/aarch64.c (aarch64_split_dimode_const_store): New
function.
* gcc.target/aarch64/store_repeating_constant_1.c: New test.
* gcc.target/aarch64/store_repeating_constant_2.c: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@242551
138bc75d-0d04-0410-961f-
82ee72b054a4